Home / 299,827.19-449,976.80-139,820.81

Finding the Fourth Proportional to 299,827.19, 449,976.80 and 139,820.81

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Solution

The fourth proportional to 299,827.19, 449,976.80 and 139,820.81 is: 209,841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,827.19 : 449,976.80 = 139,820.81 : x
  2. Step 2: Convert to fraction form
    299,827.19/449,976.80 = 139,820.81/x
  3. Step 3: Cross multiply
    299,827.19x = 449,976.80 × 139,820.81
  4. Step 4: Simplify right side
    299,827.19x = 62,916,118,756.88
  5. Step 5: Solve for x
    x = 62,916,118,756.88/299,827.19
  6. Step 6: Final answer
    x = 209,841.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.